Chiral Symmetry in Two-Color QCD at Finite Temperature

Abstract

We study the chiral symmetry in two-color QCD with N massless flavors at finite temperature, using an effective theory. For the gauge group SU(2), the chiral symmetry is enlarged to SU(2N), which is then spontaneously broken to Sp(2N) at zero temperature. At finite temperature, and when the axial anomaly can be neglected, we find a first order phase transition occurring for two or more flavors. In the presence of instantons, the symmetry restoration unambiguously remains first order for three or more massless flavors. These results could be relevant for lattice studies of chiral symmetry at finite temperature and density.

10 pages, Revtex

References in corpus (3)

• On two-color QCD with baryon chemical potential
• Enhanced Global Symmetries and The Chiral Phase Transition
• Critical Behavior in Nt = 4 Staggered Fermion Thermodynamics

Cited by in corpus (16)

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• The Phase Diagram of Four Flavor SU(2) Lattice Gauge Theory at Nonzero Chemical Potential and Temperature
• Diquark Condensation at Nonzero Chemical Potential and Temperature
• The Superfluid and Conformal Phase Transitions of Two-Color QCD
• Enhanced Global Symmetry Constraints on epsilon Terms
• Phase diagram of two-color quark matter at nonzero baryon and isospin density
• Random matrix study of the phase structure of QCD with two colors
• Phase-diagram of two-color lattice QCD in the chiral limit
• The critical equation of state of the three-dimensional O(N) universality class: N>4
• Melting the Diquark Condensate in Two-Color QCD: A Renormalization Group Analysis
• Proposal for a Constant Cosmological Constant
• Confining properties of QCD at finite temperature and density
• SU(2) Lattice Gauge Theory at Nonzero Chemical Potential and Temperature
• Exploring the gluoN_c plasma
• Chiral limit of 2-color QCD at strong couplings
• Fluctuation Induced Critical Behavior at Non-Zero Temperature and Chemical Potential